OpticalRawDigit.h

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#ifndef optdata_OpticalRawDigit_h
#define optdata_OpticalRawDigit_h

// LArSoft includes
#include "lardataobj/OpticalDetectorData/FIFOChannel.h"

// C++ includes
#include <vector>
#include <functional> // so we can redefine less<> below
#include <limits>

namespace optdata {

  class OpticalRawDigit : public FIFOChannel
  {
  public:

    // Simple constructor/destructor.
    OpticalRawDigit ( Optical_Category_t category = kUndefined, 
                      TimeSlice_t time = 0,
                      Frame_t frame = 0,
                      Channel_t channel = std::numeric_limits<Channel_t>::max(),
                      size_type len = 0 ) 
      : FIFOChannel(category,time,frame,channel,len)
    {};

    ~OpticalRawDigit() {};
  };

  // In case we want to sort a collection of OpticalRawDigits (e.g.,
  // std::set<OpticalRawDigit>), here's the definition of the less-than
  // operator.
  bool operator<( const OpticalRawDigit& lhs, const OpticalRawDigit& rhs )
  {
    // Sort by channel, frame number, and time associated with the first bin.
    if ( lhs.ChannelNumber()   < rhs.ChannelNumber()  &&
         lhs.Frame()           < rhs.Frame()          &&
         lhs.TimeSlice()       < rhs.TimeSlice() )
      return true;
    return false;
  }

} // namespace optdata

// For no extra charge, include how to sort OpticalRawDigit*, just in
// case we want (for example) a std::set<OpticalRawDigit*>.
namespace std {
  template <> 
  class less<optdata::OpticalRawDigit*>
  {
  public:
    bool operator()( const optdata::OpticalRawDigit* lhs, const optdata::OpticalRawDigit* rhs )
    {
      return (*lhs) < (*rhs);
    }
  };
} // std

#endif // optdata_OpticalRawDigit_h